Water-meter.



H. I. DILTS.

WATER METER.

APPLICATION FILED MAR. 18, 1910.

966,316. Patented Aug. 2, 1910.

Attest: Inventor:

Paar union 1 HENRY I. DI L'IS, OF NEW YORK, N. Y., ASSIGNOR T0 NEPTUNEMETER COMPANY, OF

' NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

WATERFMETER.

To all whoa n it concern:

Be it known that I, HENRY I. Dmrs, a

citizen of the United States, residing in.

vice and a low-duty metering device are,

combined, a valve, operated by variations in the pressure differential,acting to permit the flow through one of such meters, and to prevent-theflow through the other of such meters, and it is particularly concernedwith the construction of the valve by which the flow through one meteror the other is determined.

The valve which forms the subject of this invention is designed withparticular reference to-the keeping of the valve seat or seats free fromhard particles which might prevent a proper seating of the valve and theavoidance of liability of the valve to stick or bind.

The invention will be more fully ex plained hereinafter with referenceto the accompanying drawing which presents a view, partly in elevationand partly in vertical section, of a compound meter which em- ,bodiesthe inventio As in the structure represented in the drawing, therelatively high-dut metering device a and the relatively low-dzitymeter- -ing device I), are preferably, although not necessarily,combined in a single structure. These metering devices, moreover, may beof any suitable character, the metering device a being shown as of theturbine type, which is well adapted to register accurately large flowsof liquid, while the metering device b is of the nutating disk type,which is well adapted to register accurately small flows of liquid. Themetering devices are respectively provided, as usual, with registeringmechanisms, as ata" and b. In the structure shown, there is a commoninlet or inflow opening for the liquid at c and a common outlet oroutflow at d. The liquid which enters-at the inlet 0 asses into achamber e fromwhich, according to the po sition of the valve hereinafterreferred to,

Specification of Letters Iatent.

- Application filed March 18, 1910. Serial No. 550,255.

-0 is lifted Patented Aug.2,1910.

it flows either through that branch of the I common conduit whichincludes the highduty metering device a and the channel e, into thechamber f, whence it escapes through the outlet d, or through thatbranch which includes the channel 9, the low-duty metering device Z) andthe channel h, into the chamber f. Between the channel 6 and the chamberf is a diaphragm or wall 2' having an opening fittedwith a sphericalvalve seat Z, while the channel h, from the lowduty meter, terminates ina port m, prefer: ably cylindrical, the walls of which are extendedbelow the lateral outlet ports '12 to form a guide. A spherical valvebody 0 cooperates with the spherical valve seat Z and isrigidlyconnected by a stem pwith a valve body 9, which is alsopreferably spherical.

The distance between centers -of the valve bodies 0 and g and thedistance between the valve seat Z and the lateral ports n are such thatwhen the valve body 0 rests on its seat, the valve ports a areunobstructed by the valve bodyand that when the valve body f om itsseat, as by a substantial increase in the pressure difierential, thevalve ports n are closed by the valve body 9. The two-valve bodies arefixedly united by the stem 3) and control respectively the two branchesthrough one ,or the other of which the liquid may flow-from the inlet tothe outlet of the compound meter.

It will now be seen that when the flow of liquid is relatively small,the valve body 0 rests on its seat and prevents the flow of Waterthrough the high-duty meter a, while permit the flow of water throughthe lowduty meter; and that, when the. flow of liquid through the inlet0 increases and the difierence of pressure between the inlet and theoutlet increases to a substantial degree, the valve body 0 will belifted from its seat,

permitting the flow of liquid through the'" high-duty meter and thevalve body 9 will be moved to close the ports n preventing the furtherflow of liquid'through the low-duty,

the valve body 9 is in such position as to sage through the port m, asthe case may be. The sphericity of the valve seat Z and of itscooperating valve body 0 affords no lodgis lifted from its seat withoutany tendency of the parts to jam or bind.

I claim as my invention:

1. The combination of a. relatively highduty meter, a relativelylow-duty meter, a

common conduit having branches in which the two meters .are respectivelylocated, the

v inflow and the outflow being common to both v branches, one of suchbranches having a spherical valve seat and the other of said brancheshaving a straight port with lateral outlets, a spherical valve body forcotiperation with the spherical valve seat, a valve body for cotiperationwith the straight valve port fixedly unlted with the sphericalvalve ody and means connecting the valve bodies to move together,whereby when one valve body is in position to close one branch, the

other valve body is in open osition to permit flow through the otherranch.

2. The combination of a relatively highduty meter, a relatively low-dutymeter, a common conduit having branches in which the two meters arerespectively located, the inflow and the outflow being common to bothbranches, one of such branches having a spherical valve seat and theother of said branches having a straight cylindrical port with lateraloutlets, a spherical valve body for cooperation with the s herical valveseat, a spherical valve body or coiiperation withthe straightcylindrical port and means connecting the valve bodies to move together, whereby when one valve body is inposition to close one branch,the other valve body is 'in open position to permit flow through theother branch.

This specification signedand witnessed this 11th day of March, A. D.1910.

HENRY I. DILTS.

- Signed in the presence of ELLA J. KRUGER, ,Ammosn L. OSmm.

